diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
deleted file mode 100644
index 8be4aa5..0000000
--- a/.github/FUNDING.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-# These are supported funding model platforms
-
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: ['https://www.buymeacoffee.com/shenxn']
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index defc7de..dbaa1ba 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -2,6 +2,7 @@ name: build from source
 
 on:
   push:
+    branches: [master]
     paths:
       - .github/workflows/build.yaml
       - build/*
@@ -13,105 +14,21 @@ on:
   workflow_dispatch:
 
 env:
-  GHCR_REPO: shenxn/protonmail-bridge-docker
-  DOCKERHUB_REPO: shenxn/protonmail-bridge
-  DOCKER_REPO_DEV: ghcr.io/shenxn/protonmail-bridge
-  PLATFORMS: linux/amd64,linux/arm64/v8,linux/arm/v7,linux/riscv64
+  GHCR_REPO: ghcr.io/${{ github.repository_owner }}/protonmail-bridge
 
 jobs:
-  test:
-    runs-on: ubuntu-latest
-    if: github.ref != 'refs/heads/master'
-    steps:
-      - name: Checkout
-        uses: actions/checkout@master
-
-      - name: Set version
-        id: version
-        run: echo "version=`cat VERSION`" >> $GITHUB_ENV
-
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            ${{ env.DOCKER_REPO_DEV }}
-
-      - name: Login to GHCR
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          driver-opts: network=host
-
-      - name: Build and push by digest
-        id: build
-        uses: docker/build-push-action@v6
-        with:
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,"name=${{ env.DOCKER_REPO_DEV }}",push-by-digest=false,name-canonical=true,push=true
-          context: ./build
-          file: ./build/Dockerfile
-          tags: "${{ env.DOCKER_REPO_DEV }}:dev-${{ github.ref_name }}"
-          build-args: |
-            version=${{ env.version }}
-
-      - name: Run Trivy vulnerability scan
-        uses: aquasecurity/trivy-action@0.30.0
-        with:
-          image-ref: "${{ env.DOCKER_REPO_DEV }}:dev-${{ github.ref_name }}"
-          format: 'sarif'
-          exit-code: 0
-          severity: 'CRITICAL,HIGH'
-          output: 'trivy-results.sarif'
-
-      - name: Upload Trivy scan SARIF report
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: 'trivy-results.sarif'
-
   build:
     runs-on: ubuntu-latest
-    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-    strategy:
-      fail-fast: false
-      matrix:
-        platform:
-          - linux/amd64
-          - linux/arm64/v8
-          - linux/arm/v7
-          - linux/riscv64
+    permissions:
+      contents: read
+      packages: write
+      security-events: write
     steps:
       - name: Checkout
-        uses: actions/checkout@master
-
-      - name: Prepare
-        run: |
-          platform=${{ matrix.platform }}
-          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+        uses: actions/checkout@v4
 
       - name: Set version
-        id: version
-        run: echo "version=`cat VERSION`" >> $GITHUB_ENV
-
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            ${{ env.DOCKERHUB_REPO }}
-            ${{ env.GHCR_REPO }}
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.REGISTRY_USERNAME }}
-          password: ${{ secrets.REGISTRY_PASSWORD }}
+        run: echo "version=$(cat VERSION)" >> $GITHUB_ENV
 
       - name: Login to GHCR
         uses: docker/login-action@v3
@@ -120,113 +37,43 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Build and push by digest
-        id: build
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.GHCR_REPO }}
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
+            type=raw,value=${{ env.version }}
+
+      - name: Build and push
         uses: docker/build-push-action@v6
         with:
-          platforms: ${{ matrix.platform }}
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,"name=name=${{ env.DOCKERHUB_REPO }},${{ env.GHCR_REPO }}",push-by-digest=true,name-canonical=true,push=false
           context: ./build
           file: ./build/Dockerfile
-          tags: |
-            "${{ env.DOCKERHUB_REPO }}:build"
-            "${{ env.DOCKERHUB_REPO }}:${{ env.version }}-build"
-            "${{ env.GHCR_REPO }}:build"
-            "${{ env.GHCR_REPO }}:${{ env.version }}-build"
-          provenance: false
-          sbom: false
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
           build-args: |
             version=${{ env.version }}
-
-      - name: Export digest
-        run: |
-          mkdir -p ${{ runner.temp }}/digests
-          digest="${{ steps.build.outputs.digest }}"
-          touch "${{ runner.temp }}/digests/${digest#sha256:}"
-
-      - name: Upload digest
-        uses: actions/upload-artifact@v4
-        with:
-          name: digests-${{ env.PLATFORM_PAIR }}
-          path: ${{ runner.temp }}/digests/*
-          if-no-files-found: error
-          retention-days: 1
-
-
-  merge:
-    runs-on: ubuntu-latest
-    needs:
-      - build
-    steps:
-      - name: Download digests
-        uses: actions/download-artifact@v4
-        with:
-          path: ${{ runner.temp }}/digests
-          pattern: digests-*
-          merge-multiple: true
-
-      - name: Set version
-        id: version
-        run: echo "version=`cat VERSION`" >> $GITHUB_ENV
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.REGISTRY_USERNAME }}
-          password: ${{ secrets.REGISTRY_PASSWORD }}
-
-      - name: Login to GHCR
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          driver-opts: network=host
-
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            ${{ env.DOCKERHUB_REPO }}
-            ${{ env.GHCR_REPO }}
-          tags: |
-            type=raw,enable=true,value=${{ env.version }}-build
-            type=raw,enable=true,suffix=,value=build
-
-      - name: Create manifest list and push
-        working-directory: ${{ runner.temp }}/digests
-        run: |
-          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf '${{ env.DOCKERHUB_REPO }}@sha256:%s ' *)
-          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf '${{ env.GHCR_REPO }}@sha256:%s ' *)
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
 
       - name: Run Trivy vulnerability scan
+        if: github.event_name != 'pull_request'
         uses: aquasecurity/trivy-action@0.30.0
         with:
-          image-ref: "${{ env.DOCKERHUB_REPO }}:${{ env.version }}-build"
-          format: 'sarif'
+          image-ref: "${{ env.GHCR_REPO }}:${{ env.version }}"
+          format: sarif
           exit-code: 0
-          severity: 'CRITICAL,HIGH'
-          output: 'trivy-results.sarif'
+          severity: CRITICAL,HIGH
+          output: trivy-results.sarif
+
       - name: Upload Trivy scan SARIF report
+        if: github.event_name != 'pull_request'
         uses: github/codeql-action/upload-sarif@v3
         with:
-          sarif_file: 'trivy-results.sarif'
-
-      - name: Inspect image
-        run: |
-          docker buildx imagetools inspect ${{ env.DOCKERHUB_REPO }}:${{ steps.meta.outputs.version }}
-          docker buildx imagetools inspect ${{ env.GHCR_REPO }}:${{ steps.meta.outputs.version }}
+          sarif_file: trivy-results.sarif
diff --git a/.github/workflows/deb.yaml b/.github/workflows/deb.yaml
deleted file mode 100644
index ddf4c99..0000000
--- a/.github/workflows/deb.yaml
+++ /dev/null
@@ -1,79 +0,0 @@
-name: pack from deb
-
-on:
-  push:
-    paths:
-      - .github/workflows/deb.yaml
-      - deb/*
-      - VERSION
-  pull_request:
-    paths:
-      - .github/workflows/deb.yaml
-      - deb/*
-  workflow_dispatch:
-
-env:
-  DOCKER_REPO: shenxn/protonmail-bridge
-  DOCKER_REPO_DEV: ghcr.io/shenxn/protonmail-bridge-dev
-
-jobs:
-  deb:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@master
-      - name: Set version
-        id: version
-        run: echo "version=`cat VERSION`" >> $GITHUB_ENV
-      - name: Set repo
-        id: repo
-        run: if [[ $GITHUB_REF == "refs/heads/master" ]]; then echo "::set-output name=repo::${DOCKER_REPO}"; else echo "::set-output name=repo::${DOCKER_REPO_DEV}"; fi
-      - name: Docker meta
-        id: docker_meta
-        uses: crazy-max/ghaction-docker-meta@v1
-        with:
-          images: ${{ steps.repo.outputs.repo }}
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
-      - name: Build image without push
-        uses: docker/build-push-action@v2
-        with:
-          context: ./deb
-          file: ./deb/Dockerfile
-          load: true
-          tags: protonmail-bridge:latest
-      - name: Scan image
-        id: scan
-        uses: anchore/scan-action@v2
-        with:
-          image: protonmail-bridge:latest
-          fail-build: true
-          severity-cutoff: critical
-          acs-report-enable: true
-      - name: Upload Anchore scan SARIF report
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: ${{ steps.scan.outputs.sarif }}
-      - name: Login to DockerHub
-        uses: docker/login-action@v1
-        if: ${{ github.event_name != 'pull_request' }}
-        with:
-          username: ${{ secrets.REGISTRY_USERNAME }}
-          password: ${{ secrets.REGISTRY_PASSWORD }}
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v1
-        if: ${{ github.event_name != 'pull_request' }}
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.CR_PAT }}
-      - name: Push image
-        uses: docker/build-push-action@v2
-        with:
-          context: ./deb
-          file: ./deb/Dockerfile
-          tags: |
-            ${{ steps.repo.outputs.repo }}:latest
-            ${{ steps.repo.outputs.repo }}:${{ env.version }}
-          labels: ${{ steps.docker_meta.outputs.labels }}
-          push: ${{ github.event_name != 'pull_request' }}
diff --git a/.github/workflows/mirror.yaml b/.github/workflows/mirror.yaml
deleted file mode 100644
index 4e2409b..0000000
--- a/.github/workflows/mirror.yaml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: Mirroring
-
-# yamllint disable-line rule:truthy
-on:
-  push:
-    branches:
-      - master
-      - dev
-
-jobs:
-  mirror_gitee:
-    name: Mirror to Gitee
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-      - name: Push to Gitee
-        env:
-          SSH_KEY: ${{ secrets.GITEE_KEY }}
-        run: |
-          mkdir -p ~/.ssh
-          echo "${SSH_KEY}" > ~/.ssh/id_rsa
-          chmod 600 ~/.ssh/id_rsa
-          export GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -l git"
-          git remote add gitee git@gitee.com:shenxn/protonmail-bridge-docker.git
-          git push --tags --force --prune gitee "refs/remotes/origin/*:refs/heads/*"
diff --git a/.github/workflows/update-check.yaml b/.github/workflows/update-check.yaml
index 0c46ab4..02a070b 100644
--- a/.github/workflows/update-check.yaml
+++ b/.github/workflows/update-check.yaml
@@ -1,24 +1,19 @@
 name: update check
 
 on:
-  push:
-    paths:
-      - .github/workflows/update-check.yaml
-      - update-check.py
-  pull_request:
-    paths:
-      - .github/workflows/update-check.yaml
-      - update-check.py
   schedule:
-  - cron: '0 0 * * *'  # runs everyday at midnight
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+permissions:
+  contents: write
 
 jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout
-      uses: actions/checkout@master
-      with:
-        token: ${{ secrets.PERSONAL_TOKEN }}
-    - name: Check Update
-      run: python3 update-check.py ${{ github.event_name == 'pull_request' }}
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Check for update
+        run: python3 update-check.py
diff --git a/deb/Dockerfile b/deb/Dockerfile
deleted file mode 100644
index a0d8e2c..0000000
--- a/deb/Dockerfile
+++ /dev/null
@@ -1,28 +0,0 @@
-### The Deb install is just a repack of the official ProtonMail Bridge deb package with less dependencies.
-### I recommend you don't use this. It's here for legacy reasons.
-
-FROM debian:sid-slim AS build
-
-COPY install.sh PACKAGE /
-RUN apt-get update && apt-get install -y wget binutils
-
-# Repack deb (removes unnecessary dependencies and produces /protonmail.deb)
-RUN bash /install.sh
-
-FROM debian:sid-slim
-LABEL maintainer="Simon Felding <sife@adm.ku.dk>"
-
-EXPOSE 25/tcp
-EXPOSE 143/tcp
-
-WORKDIR /protonmail
-
-# Copy bash scripts
-COPY gpgparams entrypoint.sh PACKAGE /protonmail/
-COPY --from=build /protonmail.deb /tmp/protonmail.deb
-
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends /tmp/protonmail.deb socat pass libsecret-1-0 ca-certificates procps \
-    && rm -rf /var/lib/apt/lists/*
-
-CMD ["bash", "/protonmail/entrypoint.sh"]
diff --git a/deb/PACKAGE b/deb/PACKAGE
deleted file mode 100644
index 6d4eacd..0000000
--- a/deb/PACKAGE
+++ /dev/null
@@ -1 +0,0 @@
-https://github.com/ProtonMail/proton-bridge/releases/download/v3.22.0/protonmail-bridge_3.22.0-1_amd64.deb
\ No newline at end of file
diff --git a/deb/entrypoint.sh b/deb/entrypoint.sh
deleted file mode 100644
index 13637e5..0000000
--- a/deb/entrypoint.sh
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-# Initialize
-if [[ $1 == init ]]; then
-
-    # # Parse parameters
-    # TFP=""  # Default empty two factor passcode
-    # shift  # skip `init`
-    # while [[ $# -gt 0 ]]; do
-    #     key="$1"
-    #     case $key in
-    #         -u|--username)
-    #         USERNAME="$2"
-    #         ;;
-    #         -p|--password)
-    #         PASSWORD="$2"
-    #         ;;
-    #         -t|--twofactor)
-    #         TWOFACTOR="$2"
-    #         ;;
-    #     esac
-    #     shift
-    #     shift
-    # done
-
-    # Initialize pass
-    gpg --generate-key --batch /protonmail/gpgparams
-    pass init pass-key
-
-    # Login
-    protonmail-bridge --cli
-
-else
-
-    # socat will make the conn appear to come from 127.0.0.1
-    # ProtonMail Bridge currently expects that.
-    # It also allows us to bind to the real ports :)
-    socat TCP-LISTEN:25,fork TCP:127.0.0.1:1025 &
-    socat TCP-LISTEN:143,fork TCP:127.0.0.1:1143 &
-
-    # Start protonmail
-    # Fake a terminal, so it does not quit because of EOF...
-    rm -f faketty
-    mkfifo faketty
-    cat faketty | protonmail-bridge --cli
-
-fi
diff --git a/deb/gpgparams b/deb/gpgparams
deleted file mode 100644
index 355568e..0000000
--- a/deb/gpgparams
+++ /dev/null
@@ -1,8 +0,0 @@
-%no-protection
-%echo Generating a basic OpenPGP key
-Key-Type: RSA
-Key-Length: 2048
-Name-Real: pass-key
-Expire-Date: 0
-%commit
-%echo done
diff --git a/deb/install.sh b/deb/install.sh
deleted file mode 100644
index 9593725..0000000
--- a/deb/install.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/bash
-set -ex
-
-# Repack deb (remove unnecessary dependencies)
-mkdir deb
-wget -i /PACKAGE -O /deb/protonmail.deb
-cd deb
-ar x -v protonmail.deb
-mkdir control
-tar zxvf control.tar.gz -C control
-sed -i "s/^Depends: .*$/Depends: libgl1, libc6, libsecret-1-0, libstdc++6, libgcc1/" control/control
-cd control
-tar zcvf ../control.tar.gz .
-cd ../
-
-ar rcs -v /protonmail.deb debian-binary control.tar.gz data.tar.gz
diff --git a/update-check.py b/update-check.py
index 19666d6..13e29b6 100644
--- a/update-check.py
+++ b/update-check.py
@@ -3,34 +3,24 @@ import requests, os, sys
 def git(command):
   return os.system(f"git {command}")
 
-
 release = requests.get("https://api.github.com/repos/protonmail/proton-bridge/releases/latest").json()
 version = release['tag_name']
-deb = [asset for asset in release ['assets'] if asset['name'].endswith('.deb')][0]['browser_download_url']
 
 print(f"Latest release is: {version}")
 
 with open("VERSION", 'w') as f:
   f.write(version)
 
-with open("deb/PACKAGE", 'w') as f:
-  f.write(deb)
-
 git("config --local user.name 'GitHub Actions'")
 git("config --local user.email 'actions@github.com'")
 
 git("add -A")
 
-if git("diff --cached --quiet") == 0: # Returns 0 if there are no changes
+if git("diff --cached --quiet") == 0:
   print("Version didn't change")
   exit(0)
 
 git(f"commit -m 'Bump version to {version}'")
-is_pull_request = sys.argv[1] == "true"
-
-if is_pull_request:
-  print("This is a pull request, skipping push step.")
-  exit(0)
 
 if git("push") != 0:
   print("Git push failed!")